Connecting pipe fitting for ultrafiltration of hollow fiber flat sheet membrane

Abstract

The utility model discloses a connecting pipe fitting for ultrafiltration of a hollow fiber flat sheet membrane, which comprises a rubber pipe, two ends of the rubber pipe are fixedly connected with butt joint discs, the outer wall of the rubber pipe is sleeved with a protective net, the outer walls of the butt joint discs are fixedly connected with retaining rings, the outer walls of the butt joint discs are fixedly connected with conical pipes, and the conical pipes are fixedly connected with the rubber pipe. The outer walls of the two conical pipes are slidably sleeved with a first butt joint pipe and a second butt joint pipe correspondingly, and the outer walls of the first butt joint pipe and the second butt joint pipe are fixedly connected with fixing rings correspondingly. Through the arrangement of the rubber pad, the annular sealing ring, the conical pipe, the fixing ring, the bolt and the nut, the fixing ring is extruded on the rubber pad and the annular sealing ring, the sealing performance of the first butt joint pipe and the second butt joint pipe is improved, and meanwhile the conical pipe facilitates butt joint of pipelines with different calibers; when the rubber pipe is impacted, the rubber pipe bears large deflection and angle changes within a certain range and can flexibly adapt to different pipeline layouts and operation conditions.

Description

Technical Field

[0001] The utility model relates to the technical field of flat membranes, in particular to a connecting pipe fitting for hollow fiber flat membrane ultrafiltration. Background Art

[0002] Flat membranes are widely used, with the characteristics of simple operation, convenient maintenance, low energy consumption, and strong adaptability. They have gradually been used in sewage treatment in related industries. The common flat membrane assembly is a frame welded from 304 stainless steel, into which the membranes are inserted one by one for fixing, and aeration pipes and water collection pipes are installed, which is called a membrane assembly. At present, it is common that the membranes can be formed into an integer assembly, regardless of the size of the single membrane.

[0003] In the prior art, the water collecting pipes on the membrane stack need to use connecting pipes to connect the ultrafiltration membrane assembly and the pipeline system. However, after the existing connecting pipes are docked, the pipelines are easily subjected to external impacts and cause bending and displacement after the flat membrane assembly is put into water and used, and cannot adapt to different pipeline layouts. Therefore, we propose a connecting pipe for hollow fiber flat membrane ultrafiltration to solve the above problem. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a connecting pipe fitting for hollow fiber flat membrane ultrafiltration.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A connecting pipe fitting for hollow fiber flat membrane ultrafiltration comprises a rubber tube, both ends of the rubber tube are fixedly connected to docking plates, the outer wall of the rubber tube is sleeved with a protective net, the outer wall of the docking plate is fixedly connected to a buckle, the outer wall of the docking plate is fixedly connected to a conical tube, the outer walls of the two conical tubes are respectively slidably sleeved with a first docking tube and a second docking tube, the outer walls of the first docking tube and the second docking tube are fixedly connected to fixing rings, a plurality of through holes are opened in the fixing ring and the outer wall of the docking plate, bolts are slidably connected to the inner walls of the through holes, and a sealing mechanism is provided on the outer wall of the docking plate.

[0007] Preferably, the sealing mechanism comprises a rubber pad, the outer wall of the docking plate is fixedly connected to the outer wall of the rubber pad, and the outer wall of the docking plate is fixedly connected to an annular sealing ring.

[0008] Preferably, the outer wall of the buckle is pressed against the outer wall of the rubber tube, and the two ends of the protective net are fixedly connected to the outer walls of the two buckles respectively, so that sharp objects are prevented from piercing the rubber tube by providing the protective net.

[0009] Preferably, the inner wall of the annular sealing ring contacts the outer wall of the tapered tube.

[0010] Preferably, the outer wall of the fixing ring is in contact with the outer walls of the annular sealing ring and the rubber pad, and the annular sealing ring and the rubber pad increase the sealing performance between the fixing ring and the docking plate.

[0011] Preferably, a docking hole is provided on the outer wall of the docking plate.

[0012] Preferably, a nut is provided on the threaded sleeve of the outer wall of the bolt, and the fixing ring is pressed against the annular sealing ring by setting the nut.

[0013] Compared with the prior art, the advantages of the utility model are:

[0014] This solution provides a rubber pad, an annular sealing ring, a tapered tube, a fixing ring, a bolt and a nut. The fixing ring is squeezed on the rubber pad and the annular sealing ring to increase the sealing performance of the first butt joint and the second butt joint. At the same time, the tapered tube facilitates the butt joint of pipes of different diameters. When impacted, the rubber tube can withstand greater deflection and angle changes within a certain range and can flexibly adapt to different pipeline layouts and operating conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a hollow fiber flat membrane ultrafiltration connecting pipe provided by the utility model;

[0017] Figure 2 This is a schematic cross-sectional structure diagram of a connecting pipe for hollow fiber flat membrane ultrafiltration proposed by the utility model;

[0018] Figure 3 A connecting pipe for hollow fiber flat membrane ultrafiltration proposed by the utility model Figure 2 A schematic diagram of the enlarged structure of part A in the figure.

[0019] In the figure: 1. rubber tube; 2. docking plate; 3. protective net; 4. buckle; 5. docking hole; 6. rubber pad; 7. annular sealing ring; 8. conical tube; 9. first docking tube; 10. second docking tube; 11. fixing ring; 12. bolt; 13. nut. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Depend on Figure 1-Figure 3 As shown, it relates to a connecting pipe fitting for hollow fiber flat membrane ultrafiltration, including a rubber tube 1, both ends of the rubber tube 1 are fixedly connected with a docking plate 2, the outer wall of the rubber tube 1 is sleeved with a protective net 3, the protective net 3 protects the outer wall of the rubber tube 1, the outer wall of the buckle 4 is squeezed with the outer wall of the rubber tube 1, the two ends of the protective net 3 are respectively fixedly connected with the outer walls of the two buckle rings 4, and the buckle rings 4 increase the sealing between the rubber tube 1 and the docking plate 2.

[0022] A buckle ring 4 is fixedly connected to the outer wall of the docking plate 2, and a docking hole 5 is opened on the outer wall of the docking plate 2. The outer walls of the two tapered tubes 8 are respectively slidably sleeved with a first docking tube 9 and a second docking tube 10. The tapered design of the tapered tube 8 facilitates the docking of pipes of different calibers. The outer walls of the first docking tube 9 and the second docking tube 10 are fixedly connected with a fixing ring 11, and the outer walls of the fixing ring 11 are in contact with the outer walls of the annular sealing ring 7 and the rubber pad 6.

[0023] The outer walls of the fixing ring 11 and the docking plate 2 are both provided with a plurality of through holes, the inner walls of the through holes are slidably connected with bolts 12, and the outer wall of the bolts 12 is threadedly sleeved with nuts 13. The fixing ring 11 is moved inward by rotating the bolts 12 or the nuts 13, and is squeezed on the rubber pad 6 and the annular sealing ring 7 to form a secondary seal.

[0024] The outer wall of the docking tray 2 is provided with a sealing mechanism, which includes a rubber pad 6 fixedly connected to the outer wall of the docking tray 2 and the outer wall of the rubber pad 6, an annular sealing ring 7 fixedly connected to the outer wall of the docking tray 2, and a conical tube 8 fixedly connected to the outer wall of the docking tray 2, and the inner wall of the annular sealing ring 7 contacts the outer wall of the conical tube 8.

[0025] Working principle: When in use, slide the first butt joint tube 9 and the second butt joint tube 10 onto the two tapered tubes 8, and make the two fixing rings 11 contact the rubber pad 6 and the annular sealing ring 7, pass multiple bolts 12 through multiple through holes in turn, and turn the nuts 13 to squeeze the fixing rings 11 onto the rubber pad 6 and the annular sealing ring 7, thereby increasing the sealing performance of the first butt joint tube 9 and the second butt joint tube 10. At the same time, the tapered tube 8 facilitates the docking of pipes of different calibers. When impacted, the rubber tube 1 can withstand large deflection and angle changes within a certain range, and can flexibly adapt to different pipeline layouts and operating conditions.

[0026] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A connecting pipe for hollow fiber flat membrane ultrafiltration, comprising a rubber tube (1), It is characterized in that Both ends of the rubber tube (1) are fixedly connected to a docking plate (2); the outer wall of the rubber tube (1) is provided with a protective net (3); the outer wall of the docking plate (2) is fixedly connected with a buckle ring (4); the outer wall of the docking plate (2) is fixedly connected with a conical tube (8); the outer walls of the two conical tubes (8) are respectively slidably provided with a first docking tube (9) and a second docking tube (10); the outer walls of the first docking tube (9) and the second docking tube (10) are fixedly connected with a fixing ring (11); the fixing ring (11) and the outer wall of the docking plate (2) are provided with a plurality of through holes; the inner walls of the through holes are slidably connected with bolts (12); and the outer wall of the docking plate (2) is provided with a sealing mechanism.

2. A connecting pipe for hollow fiber flat membrane ultrafiltration according to claim 1, It is characterized in that The sealing mechanism comprises a rubber pad (6), the outer wall of the docking plate (2) is fixedly connected to the outer wall of the rubber pad (6), and the outer wall of the docking plate (2) is fixedly connected to an annular sealing ring (7).

3. A connecting pipe for hollow fiber flat membrane ultrafiltration according to claim 1, It is characterized in that The outer wall of the buckle (4) is pressed against the outer wall of the rubber tube (1), and the two ends of the protective net (3) are respectively fixedly connected to the outer walls of the two buckle rings (4).

4. A connecting pipe for hollow fiber flat membrane ultrafiltration according to claim 2, It is characterized in that The inner wall of the annular sealing ring (7) contacts the outer wall of the tapered tube (8).

5. A connecting pipe for hollow fiber flat membrane ultrafiltration according to claim 2, It is characterized in that The outer wall of the fixing ring (11) is in contact with the outer walls of the annular sealing ring (7) and the rubber pad (6).

6. A connecting pipe for hollow fiber flat membrane ultrafiltration according to claim 1, It is characterized in that The outer wall of the docking plate (2) is provided with a docking hole (5).

7. A connecting pipe for hollow fiber flat membrane ultrafiltration according to claim 1, It is characterized in that The outer wall thread sleeve of the bolt (12) is provided with a nut (13).

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